/**
* Copyright (C) 2006 Aelitis, All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* AELITIS, SAS au capital de 63.529,40 euros
* 8 Allee Lenotre, La Grille Royale, 78600 Le Mesnil le Roi, France.
*
*/
package com.aelitis.azureus.ui.swt.skin;
import java.text.NumberFormat;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.widgets.*;
import org.gudy.azureus2.core3.config.COConfigurationManager;
import org.gudy.azureus2.core3.util.AERunnable;
import org.gudy.azureus2.core3.util.Debug;
import org.gudy.azureus2.ui.swt.Utils;
/**
* <p>
* Parameters:
* <dl>
* <dt>.startpos</dt>
* <dd>Position in pixels of where to start the sash by default</dd>
* <dt></dt>
* <dd></dd>
* </dl>
*
* @author TuxPaper
* @created Oct 18, 2006
*
*/
public class SWTSkinObjectSash
extends SWTSkinObjectBasic
{
/**
* Fast Drag disables resizing left and right sides on each mouse move (when
* mouse is down)
*
* Two problems with disabling FASTDRAG:
* 1) The places we use the sash currently have very slow re-rendering
* 2) when the user drags out of bounds (minsize, etc), and we set doit
* to false. When the user lifts up the mouse button, we get one
* selection event at the old position (because we cancelled)
*
* #2 can be fixed... #1 not so much..
*/
private static final boolean FASTDRAG = true;
protected String sControlBefore;
protected String sControlAfter;
private Composite createOn;
private final boolean isVertical;
private Sash sash;
private Composite parentComposite;
private Composite above = null;
private int aboveMin = 0;
private Composite below = null;
private int belowMin = 0;
private String sBorder;
private SWTSkinObject soAbove;
private SWTSkinObject soBelow;
public SWTSkinObjectSash(final SWTSkin skin,
final SWTSkinProperties properties, final String sID,
final String sConfigID, String[] typeParams, SWTSkinObject parent,
final boolean bVertical) {
super(skin, properties, sID, sConfigID, "sash", parent);
isVertical = bVertical;
int style = bVertical ? SWT.VERTICAL : SWT.HORIZONTAL;
if (typeParams.length > 2) {
sControlBefore = typeParams[1];
sControlAfter = typeParams[2];
}
if (parent == null) {
createOn = skin.getShell();
} else {
createOn = (Composite) parent.getControl();
}
if (createOn == null || createOn.isDisposed()) {
Debug.out("Can not create " + sID + " because parent is null or disposed");
return;
}
sash = new Sash(createOn, style);
int splitAtPX = COConfigurationManager.getIntParameter("v3." + sID
+ ".splitAtPX", -1);
if (splitAtPX >= 0) {
sash.setData("PX", new Long(splitAtPX));
} else {
String sPos = properties.getStringValue(sConfigID + ".startpos");
if (sPos != null) {
try {
long l = NumberFormat.getInstance().parse(sPos).longValue();
sash.setData("PX", new Long(l));
} catch (Exception e) {
Debug.out(e);
}
}
}
parentComposite = createOn;
SWTSkinObject soInitializeSashAfterCreated = parent == null ? this : parent;
soInitializeSashAfterCreated.addListener(new SWTSkinObjectListener() {
public Object eventOccured(SWTSkinObject skinObject, int eventType,
Object params) {
if (eventType == SWTSkinObjectListener.EVENT_CREATED) {
initialize();
}
return null;
}
});
sBorder = properties.getStringValue(sConfigID + ".border", (String) null);
if (sBorder != null) {
sash.addPaintListener(new PaintListener() {
public void paintControl(PaintEvent e) {
e.gc.setForeground(e.gc.getDevice().getSystemColor(
SWT.COLOR_WIDGET_NORMAL_SHADOW));
Point size = sash.getSize();
if (bVertical) {
e.gc.drawLine(0, 0, 0, size.y);
if (!sBorder.startsWith("thin-top")) {
int x = size.x - 1;
e.gc.drawLine(x, 0, x, 0 + size.y);
}
} else {
e.gc.drawLine(0, 0, 0 + size.x, 0);
if (!sBorder.startsWith("thin-top")) {
int y = size.y - 1;
e.gc.drawLine(0, y, 0 + size.x, y);
}
}
}
});
}
setControl(sash);
}
/**
*
*
* @since 3.1.0.1
*/
protected void initialize() {
SWTSkinObject skinObject;
skinObject = skin.getSkinObjectByID(sControlBefore);
if (skinObject != null) {
soAbove = skinObject;
above = (Composite) skinObject.getControl();
aboveMin = skinObject.getProperties().getIntValue(
getConfigID() + ".above" + (isVertical ? ".minwidth" : ".minheight"),
0);
boolean aboveVisible = COConfigurationManager.getBooleanParameter("v3."
+ sID + ".aboveVisible", true);
soAbove.setVisible(aboveVisible);
}
skinObject = skin.getSkinObjectByID(sControlAfter);
if (skinObject != null) {
soBelow = skinObject;
below = (Composite) skinObject.getControl();
}
if (below == null) {
return;
}
belowMin = skinObject==null?0:skinObject.getProperties().getIntValue(
getConfigID() + ".below" + (isVertical ? ".minwidth" : ".minheight"), 0);
Listener l = new Listener() {
public void handleEvent(Event e) {
if (e.type == SWT.MouseUp) {
if (e.button == 3 || (e.button == 1 && (e.stateMask & SWT.MOD1) > 0)) {
String sPos = properties.getStringValue(sConfigID + ".startpos");
if (sPos == null) {
return;
}
try {
long l = NumberFormat.getInstance().parse(sPos).longValue();
sash.setData("PX", new Long(l));
// FALL THROUGH
e.type = SWT.Show;
} catch (Exception ex) {
Debug.out(ex);
return;
}
} else {
return;
}
}
if (e.type == SWT.Show) {
// delay so soAbove's show gets triggered
Utils.execSWTThreadLater(0, new AERunnable() {
public void runSupport() {
handleShow();
}
});
} else if (e.type == SWT.Selection) {
if (FASTDRAG && e.detail == SWT.DRAG) {
return;
}
Rectangle area = parentComposite.getBounds();
FormData aboveData = (FormData) above.getLayoutData();
//FormData belowData = (FormData) below.getLayoutData();
if (isVertical) {
// Need to figure out if we have to use border width elsewhere
// in calculations (probably)
aboveData.width = e.x - above.getBorderWidth();
if (aboveData.width < aboveMin) {
aboveData.width = aboveMin;
e.x = aboveMin;
} else {
int excess = area.width - (above.getBorderWidth() * 2)
- sash.getSize().x;
if (excess - aboveData.width < belowMin) {
aboveData.width = excess - belowMin;
e.doit = false;
}
}
} else {
aboveData.height = e.y - above.getBorderWidth();
if (aboveData.height < aboveMin) {
aboveData.height = aboveMin;
e.y = aboveMin;
} else {
int excess = area.height - (above.getBorderWidth() * 2)
- sash.getSize().y;
if (excess - aboveData.height < belowMin) {
aboveData.height = excess - belowMin;
e.doit = false;
}
}
}
parentComposite.layout(true);
double aboveNewSize;
if (isVertical) {
aboveNewSize = above.getBounds().width + (sash.getSize().x / 2.0);
} else {
aboveNewSize = above.getBounds().height + (sash.getSize().y / 2.0);
}
sash.setData("PX", new Long((long) aboveNewSize));
}
}
};
sash.addListener(SWT.Selection, l);
sash.addListener(SWT.MouseUp, l);
sash.getShell().addListener(SWT.Show, l);
handleShow();
}
public void dispose() {
Long px = (Long) sash.getData("PX");
if (px != null && px.longValue() != 0) {
COConfigurationManager.setParameter("v3." + sID + ".splitAtPX",
px.longValue());
}
super.dispose();
}
/**
* @param e
*
* @since 3.1.0.1
*/
protected void handleShow() {
Long px = (Long) sash.getData("PX");
if (px == null) {
return;
}
int newAboveSize;
if (soAbove.isVisible()) {
newAboveSize = px.intValue();
if (newAboveSize < aboveMin) {
newAboveSize = aboveMin;
}
} else {
newAboveSize = 0;
}
FormData aboveData = (FormData) above.getLayoutData();
if (aboveData == null) {
aboveData = Utils.getFilledFormData();
above.setLayoutData(aboveData);
}
if (isVertical) {
aboveData.width = newAboveSize;
} else {
aboveData.height = newAboveSize;
}
parentComposite.layout(true);
}
/**
* @param below
* @param bVertical
* @param parentComposite
* @param sash
* @param above
*
*/
protected void setPercent(double pctAbove, Control sash, Composite above,
Composite below, boolean bVertical, Control parentComposite,
int minAbove, int belowMin) {
FormData aboveData = (FormData) above.getLayoutData();
if (aboveData == null) {
return;
}
boolean layoutNeeded = false;
if (bVertical) {
int parentWidth = parentComposite.getBounds().width
- (parentComposite.getBorderWidth() * 2) - sash.getSize().x;
int newWidth = (int) (parentWidth * pctAbove);
if (newWidth != aboveData.width) {
aboveData.width = newWidth;
layoutNeeded = true;
}
if (pctAbove != 0.0
&& parentWidth - aboveData.width - sash.getSize().x < minAbove) {
aboveData.width = parentWidth - minAbove - sash.getSize().x;
layoutNeeded = true;
//d = (double) (aboveData.width + sash.getSize().x) / parentWidth;
} else if (aboveData.width < belowMin) {
layoutNeeded = true;
aboveData.width = belowMin;
}
sash.setData("PX", new Long(aboveData.width));
} else {
int parentHeight = parentComposite.getBounds().height
- (parentComposite.getBorderWidth() * 2) - sash.getSize().y;
int newHeight = (int) (parentHeight * pctAbove);
if (aboveData.height != newHeight) {
aboveData.height = newHeight;
layoutNeeded = true;
}
if (pctAbove != 0.0 && parentHeight - aboveData.height < minAbove
&& parentHeight >= minAbove) {
aboveData.height = parentHeight - minAbove;
layoutNeeded = true;
} else if (aboveData.height < belowMin) {
layoutNeeded = true;
aboveData.height = belowMin;
}
sash.setData("PX", new Long(aboveData.height));
}
if (layoutNeeded) {
above.getParent().layout();
}
}
public void setBelowSize(final int px) {
Utils.execSWTThread(new AERunnable() {
public void runSupport() {
int sashHeight = isVertical ? sash.getSize().x : sash.getSize().y;
int parentHeight = parentComposite.getBounds().height
- (parentComposite.getBorderWidth() * 2);
int wantAboveSize = parentHeight - sashHeight - px;
sash.setData("PX", new Long(wantAboveSize));
handleShow();
}
});
}
public void setAboveSize(final int px) {
Utils.execSWTThread(new AERunnable() {
public void runSupport() {
sash.setData("PX", new Long(px));
handleShow();
}
});
}
public void resetWidth() {
Utils.execSWTThread(new AERunnable() {
public void runSupport() {
String sPos = properties.getStringValue(sConfigID + ".startpos");
COConfigurationManager.removeParameter("v3." + sID + ".splitAt");
COConfigurationManager.removeParameter("v3." + sID + ".splitAtPX");
if (sPos != null) {
sash.setData("PX", null);
try {
int l = NumberFormat.getInstance().parse(sPos).intValue();
setAboveSize(l);
} catch (Exception e) {
Debug.out(e);
}
}
}
});
}
public boolean isAboveVisible() {
if (soAbove == null || soAbove.isDisposed()) {
return false;
}
return soAbove.isVisible();
}
public void setAboveVisible(boolean visible) {
if (soAbove == null) {
return;
}
COConfigurationManager.setParameter("v3." + sID + ".aboveVisible", visible);
soAbove.setVisible(visible);
handleShow();
}
}